UV/Optical Emission from the Expanding Envelopes of Type II Supernovae

Nir Sapir; Eli Waxman

doi:10.3847/1538-4357/aa64df

UV/Optical Emission from the Expanding Envelopes of Type II Supernovae

Nir Sapir, Eli Waxman

Department of Particle Physics and Astrophysics

Weizmann Institute of Science

Research output: Contribution to journal › Article › peer-review

Abstract

The early part of a supernova (SN) light curve is dominated by radiation escaping from the expanding shock-heated progenitor envelope. For polytropic hydrogen envelopes, the properties of the emitted radiation are described by simple analytic expressions and are nearly independent of the polytropic index, n. This analytic description holds at early time, t. 0.7 eV, t <14(R/10(13.5)cm)(0.55) days. The suppression of L at ttr/a that is obtained for standard polytropic envelopes may account for the first optical peak of double-peaked SN light curves, with the first peak at a few days for Menv <1M(circle dot).

Original language	English
Article number	130
Number of pages	11
Journal	Astrophysical Journal
Volume	838
Issue number	2
DOIs	https://doi.org/10.3847/1538-4357/aa64df
State	Published - 3 Apr 2017

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title = "UV/Optical Emission from the Expanding Envelopes of Type II Supernovae",

abstract = "The early part of a supernova (SN) light curve is dominated by radiation escaping from the expanding shock-heated progenitor envelope. For polytropic hydrogen envelopes, the properties of the emitted radiation are described by simple analytic expressions and are nearly independent of the polytropic index, n. This analytic description holds at early time, t. 0.7 eV, t <14(R/10(13.5)cm)(0.55) days. The suppression of L at ttr/a that is obtained for standard polytropic envelopes may account for the first optical peak of double-peaked SN light curves, with the first peak at a few days for Menv <1M(circle dot).",

author = "Nir Sapir and Eli Waxman",

note = "We thank A. Rubin, B. Katz, E. Ofek, and A. Gal-Yam for useful discussions and constructive comments. This research was partially supported by an ISF I-Core, an IMOS grant, and a Minerva grant.",

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doi = "10.3847/1538-4357/aa64df",

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T1 - UV/Optical Emission from the Expanding Envelopes of Type II Supernovae

AU - Sapir, Nir

AU - Waxman, Eli

N1 - We thank A. Rubin, B. Katz, E. Ofek, and A. Gal-Yam for useful discussions and constructive comments. This research was partially supported by an ISF I-Core, an IMOS grant, and a Minerva grant.

PY - 2017/4/3

Y1 - 2017/4/3

N2 - The early part of a supernova (SN) light curve is dominated by radiation escaping from the expanding shock-heated progenitor envelope. For polytropic hydrogen envelopes, the properties of the emitted radiation are described by simple analytic expressions and are nearly independent of the polytropic index, n. This analytic description holds at early time, t. 0.7 eV, t <14(R/10(13.5)cm)(0.55) days. The suppression of L at ttr/a that is obtained for standard polytropic envelopes may account for the first optical peak of double-peaked SN light curves, with the first peak at a few days for Menv <1M(circle dot).

AB - The early part of a supernova (SN) light curve is dominated by radiation escaping from the expanding shock-heated progenitor envelope. For polytropic hydrogen envelopes, the properties of the emitted radiation are described by simple analytic expressions and are nearly independent of the polytropic index, n. This analytic description holds at early time, t. 0.7 eV, t <14(R/10(13.5)cm)(0.55) days. The suppression of L at ttr/a that is obtained for standard polytropic envelopes may account for the first optical peak of double-peaked SN light curves, with the first peak at a few days for Menv <1M(circle dot).

U2 - 10.3847/1538-4357/aa64df

DO - 10.3847/1538-4357/aa64df

M3 - مقالة

SN - 0004-637X

VL - 838

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 2

M1 - 130

ER -

UV/Optical Emission from the Expanding Envelopes of Type II Supernovae

Abstract

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